1、 99 alumina ceramics include positioning column, shaft rod, piston rod, bearing sleeve and ceramic seal with end face. They are mainly used in chemical and physical conditions and are good corrosive media. These components can be used to manufacture products supported by circulating pump, reciprocating pump and vibrator. Generally, ceramic injection molding and ceramic grinding can produce a variety of complex components with strict surface finish and flatness requirements. These components are often used in water resources management, medical treatment, automobile, telecommunications and home appliance applications.
2、 99 properties of alumina ceramics
99 alumina ceramics have high melting point, high hardness and high mechanical strength. The maximum allowable temperature is within 1800 ° C. due to the increase of relatively large coefficient of thermal expansion, the thermal shock stability decreases. 99 alumina ceramic is an electrical insulating material with high resistivity and good chemical stability, so alumina has good corrosion resistance. 99 alumina ceramic is insoluble in water and only slightly soluble in strong acid and alkaline aqueous solutions. 99 alumina ceramic is a mature engineering ceramic. It provides excellent electrical insulation, high hardness and wear resistance, but relatively low strength and fracture toughness.